Skilled nursing facility (SNF) care is one of the most misunderstood parts of Medicare. Many people assume Medicare covers all nursing home stays. It doesn’t. Medicare covers a specific, limited type of skilled care under tightly defined rules. Understanding what’s covered, what isn’t, and how to qualify is critical for anyone facing a hospital discharge or planning for potential rehabilitation needs.
What Medicare covers (and doesn’t cover)
Medicare Part A covers short-term skilled nursing facility care following a qualifying hospital stay. The key word is “skilled.” Medicare covers care that requires skilled professionals — nursing, physical therapy, occupational therapy, speech therapy — not custodial care like help with bathing, eating, or daily activities.
Medicare does not cover:
- Long-term nursing home care for chronic conditions, dementia, or general aging
- Custodial care alone — help with activities of daily living without a skilled medical need
- SNF care without a qualifying hospital stay (with very limited exceptions)
- Stays beyond 100 days in a single benefit period
This is the most common point of confusion for families. If a loved one needs ongoing nursing home care because they can’t live independently, Medicare doesn’t pay for it. Long-term care is covered by Medicaid (for those who meet the income and asset criteria), long-term care insurance, or private payment.
The 3-day inpatient hospital stay rule
To qualify for Medicare-covered SNF care, you generally need a qualifying inpatient hospital stay of at least 3 consecutive days. There are critical details:
- The 3 days must be inpatient — not observation status
- The day of discharge doesn’t count toward the 3 days
- You must enter the SNF within 30 days of your hospital discharge
- The SNF care must be for the same condition (or a condition related to it) that was treated in the hospital
The inpatient vs. observation distinction trips up many people. A hospital can keep you for several days while classifying you as “observation” rather than inpatient. Observation days do not count toward the 3-day rule, no matter how long you’re there. Always ask whether you’re admitted as inpatient or in observation status — the hospital is required to tell you, and the answer affects your Medicare SNF eligibility.
Medicare Advantage and the 3-day rule
Many Medicare Advantage plans have waived the 3-day hospital stay requirement. They may approve SNF care directly from home or from a shorter hospital stay. The tradeoff is that MA plans typically require prior authorization and use their own network of SNFs. If you have Medicare Advantage, check your plan’s specific SNF rules — they may be more flexible than Original Medicare in this area.
How much Medicare pays for SNF care
For each benefit period, Medicare covers SNF care as follows:
- Days 1–20: Medicare pays 100% — you pay nothing
- Days 21–100: You pay a daily coinsurance ($217 per day in 2026)
- Days 101+: Medicare pays nothing; you’re responsible for all costs
Medigap plans G and N cover the days 21–100 coinsurance, eliminating that out-of-pocket cost. After day 100, you’re on your own — this is where many families face very difficult decisions about whether the person can return home or needs ongoing care.
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Benefit periods explained
A Medicare “benefit period” isn’t a calendar year. It starts when you’re admitted as an inpatient to a hospital or SNF and ends when you’ve been out of the hospital and any SNF for 60 consecutive days. A new benefit period can begin if you have another qualifying hospital stay later.
This means that if you have a 100-day SNF stay, return home for 70 days, then have another qualifying hospital stay, you can get up to another 100 days of SNF coverage in the new benefit period. There’s no annual limit on benefit periods — only the 100-day limit within each one.
Common reasons for denied or terminated SNF coverage
“Skilled care is no longer needed”
Medicare regularly reviews whether the SNF care continues to meet the “skilled” requirement. If the SNF determines (or Medicare auditors determine) that the patient no longer needs skilled care — only custodial care — coverage ends, even if it’s before day 100. The patient can stay in the facility but must start paying out of pocket.
This is the most common reason for early SNF coverage termination. You have the right to appeal if you believe the patient still needs skilled care — ask the SNF for the “Notice of Medicare Non-Coverage” (NOMNC), which triggers an automatic appeal review.
Wrong admission status during the hospital stay
If the qualifying hospital stay was actually observation rather than inpatient (despite spanning more than 3 days), Medicare can deny SNF coverage retroactively. This can result in unexpected bills for the entire SNF stay.
Gap between hospital and SNF beyond 30 days
If the patient went home for more than 30 days before entering the SNF, the connection to the qualifying hospital stay is broken, and Medicare denies coverage.
Appealing a denial or termination
You have strong appeal rights for SNF coverage decisions. When Medicare or the SNF tells you that coverage is ending, you must receive a written Notice of Medicare Non-Coverage (NOMNC) at least 2 days before coverage ends. The NOMNC explains your right to a fast-track appeal.
If you appeal:
- Call the Quality Improvement Organization (QIO) listed on the NOMNC by noon the day before coverage would end
- Medicare coverage continues during the review — you don’t have to pay out of pocket while the appeal is pending
- The QIO reviews the case and issues a decision typically within 1–2 days
- If you lose, you can request additional levels of appeal
This process is free and worth using whenever you believe skilled care is still needed.
After Medicare SNF coverage ends
When Medicare SNF coverage ends — whether at day 100 or earlier — the options narrow to:
- Return home with or without home health care or family support
- Move to an assisted living facility for custodial care (paid privately or through long-term care insurance)
- Stay at the SNF as a private-pay resident for ongoing custodial care
- Apply for Medicaid for long-term care — requires spending down assets in most states; planning ahead is crucial
Medicaid is the primary public funding source for long-term nursing home care for those who qualify. The eligibility process can be complex; many families consult with elder law attorneys for help with the spend-down rules, especially when one spouse needs nursing home care while the other still lives at home.
Planning for SNF care before you need it
If you’re planning for potential SNF needs, focus on a few practical things:
- Understand your Medicare plan’s SNF coverage — for MA plans, learn the network and prior authorization rules
- Consider Medigap if you have Original Medicare — plans G and N cover the days 21–100 coinsurance
- Learn the 3-day rule and observation status — advocate for inpatient admission when appropriate
- Investigate long-term care insurance well before age 65 — underwriting becomes harder with age
- Plan for potential Medicaid eligibility if long-term care is a concern — the spend-down rules have a 5-year lookback
Bottom line
Medicare covers short-term skilled nursing facility care — up to 100 days per benefit period, after a 3-day qualifying inpatient hospital stay, with full coverage for the first 20 days and daily coinsurance for days 21–100. It does not cover long-term custodial nursing home care for chronic conditions or aging. Watch for observation-status hospital stays that don’t qualify, and exercise your appeal rights if SNF coverage is terminated before you believe it should be. For long-term care needs, plan early — Medicaid, long-term care insurance, or private payment are the main funding sources.
🆓 Want help understanding what your Medicare plan covers for SNF or rehabilitation?
Our partner Chapter Medicare can walk through your plan’s specific SNF coverage rules and help you understand your options — completely free.
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Disclosure: We may receive a referral from Chapter if you choose to use their service. Chapter is a licensed health insurance agency and is not affiliated with or endorsed by Medicare or any government agency.
Further Reading
- Medicare Parts A, B, C, and D Explained
- Medicare Costs and Premiums
- Medicare and Medicaid: Dual Eligibility
- How to Appeal a Medicare Denial
- What Medicare Doesn’t Cover
- Long-Term Care Insurance Explained
This article is for general educational purposes only and does not constitute insurance or financial advice. Visit medicare.gov or contact 1-800-MEDICARE, or consult a licensed advisor for guidance specific to your situation.
